# Interleukin-8, Plasma

> This test measures the level of Interleukin-8 (IL-8), a protein in your blood that signals immune cells to move toward areas of infection or injury. It helps doctors evaluate the intensity of inflammation in the body, which is useful for monitoring severe infections or chronic immune conditions. While this measurement provides insight into immune system activity, it cannot pinpoint the specific location or underlying cause of the inflammation by itself.

- Labcorp code: 140818
- Category: [Immune Regulation](https://app.picardo.health/labs/tests/immune-regulation.md)
- Price: shown at checkout, before payment.
- Blood draw: free at a Labcorp location, or $75.00 at home.
- Order link: https://app.picardo.health/labs/order?tests=140818&ref=assistant

## About ordering

A licensed physician reviews every order before any test is run, and results arrive in the person's Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.